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(a) A section of road has a free flow speed of 55km/h and a jam density of 367 vehicles per kilometre. Assuming under a linear speed-density relationship, calculate the density at maximum flow, the maximum flow rate and the speed at maximum flow.
(b) A roadway has an average hourly traffic volume of 360 veh/h. Assuming that the arrival of vehicles is Poisson distributed, estimate the probabilities of having 0, 1, 2, 3, 4 and 5 or more vehicles arriving over a 20 second time interval. Determine the probability that the gap between successive vehicles will be less than 8 seconds.
(c) Consider the following traffic situation for an intersection. Minor road vehicles at a STOP sign need a 6 seconds gap from the major road traffic to cross the road. If the major road traffic volume is 450 veh/h, estimate the percentage of vehicles from the minor road that could make a successful crossing without being delayed. If the minor road vehicles have a follow-up time of 2 seconds, determine the maximum number of minor road vehicles that could cross the major road during one hour.
Means of escape from trains - railway inspections: The means of escape from trains is also considered in NFPA130. Some of the considerations are: At least two eme
Question: a) An antenna is an electrical conductor or system of conductors that sends and receives radio signals. Explain the omni-directional and the directional antennas.
Q. Explain the following with reference to deformation of metals: (1) Preferred orientation (2) Elastic after effect
iron crabon diagram with reactions
Convert the following reduced bearings to whole circle bearings: N.36°16’E; (b) S.28° 14’ E. (c) S.47°26’W and (d) N.58°24’W
FOUR STROKE DIESEL ENGINE: T he cycle of events that takes place in a four -stroke diesel engine has been shown. Unlike the petrol which drawn in a mixture of air and petrol,
what is communication overhead in networking?what are the types of overhead?How to reduce communication overhead in broadcasting?
Flow at low Mach number and zero incidence about M6 wing Results from FP were obtained corresponding to M ∞ = 0.2 and a = 0 and, as noted, with the input files generated by FP
A basic instrumentation system consists of a transducer, conditioning amplifier, and analog digital converter connected (in general) by analog and digital transmission lines.
centralized organization
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